β-cyclodextrin functionalized magnetite graphene oxide: A prominent adsorbent for wastewater treatment

Water pollution caused by industrial dyes, particularly from textile factories, has emerged as a major environmental concern due to the chemical stability and complex structures of these dyes, which make them resistant to conventional treatment methods. In this study, a novel β-cyclodextrin functionalized magnetite graphene oxide nanocomposite (β-CD@m-GO) was synthesized and evaluated as a high-performance adsorbent for the removal of both anionic and cationic dyes from aqueous solutions. The magnetite graphene oxide (m-GO) was prepared using an in situ chemical co-precipitation method, followed by surface functionalization with β-cyclodextrin (β-CD) to enhance adsorption capacity through host-guest inclusion interactions. Characterization using UV-Vis spectroscopy reveal that the peak at 250 cm^-1 confirm the formation of β-CD@m-GO and Fourier-transform infrared (FTIR) spectroscopy confirmed the successful functionalization. Batch adsorption experiments demonstrated rapid adsorption kinetics and high adsorption capacities, with equilibrium achieved in a short time. The enhanced performance is attributed to the synergistic effects of the large surface area and functional groups of graphene oxide, magnetic properties of FeO nanoparticles, and strong inclusion complexation ability of β-cyclodextrin. Furthermore, the material showed negligible toxicity toward normal cells, highlighting its environmental safety. Overall, β-CD@m-GO represents a promising, eco-friendly, and magnetically recoverable adsorbent for efficient removal of dyes from wastewater, offering a potential solution for industrial dye pollution.

• Supervision